21338109

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{14029}}^1$

素因数の和:14061

約数の個数: 18

約数和(自身を含む): 33377370

約数和(自身を除く): 12039261

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 14029, 42087, 126261, 182377, 547131, 1641393, 2370901, 7112703, 21338109]

約数ペア:

[(1, 21338109), (3, 7112703), (9, 2370901), (13, 1641393), (39, 547131), (117, 182377), (169, 126261), (507, 42087), (1521, 14029)]